Gage-cock



PATENTED FBBQ, 1904.

s. N. MURDOCK.

GAGE COCK.

ABPLIGATION FILED SEPT. ze, 190s.

N0 MODEL.

mvENToR lll UNITED STATES v Patented February 9, 1904.

vPATENT O/EEI'CE.

SAMUEL N. MURDOOK, OE COLUMBUS, Onno.

GAGE-Geox. j

sPEoIFIcA'rIoN forming peut er Letters Patent Ne..751,5ss, dated February 9, 1904.

' applicati@ tutti september ze, ieoaserielut. 174362. (remodel.) i

ful Improvement in Gage-Cocks, of which the following is a specification.

My invention relates to the improvement of l gage-cocks of that class which are adapted for use on locomotive or other boilers; and the objects of my invention are to provide an improved construction of gage-cock which may be utilized as a steam-gage or water-glass cock and which is provided with improved means for keeping the interior of-the gage-cock and the entrance to the boiler free from obstructions, suoh as scale, dirt, 6to.; to so construct my improved gage-cockY as to admit of the same being taken apart and cleaned with ease and rapidity and without the necessity of rst removing the steam from `the boiler, and to provide other improvements the details of construction of which will be more fully pointed out hereinafter. These objects I accomplish in the manner illustrated inthe accompanying drawings, in which-'- Figure 1 is a view in elevation'of my improved gage-cock. Fig. 2 is a central longitudinal section of the same, and Fig. 3 is a transverse section on line m of Fig. 2. i

Similar numerals refery to similar parts throughout the several views.

In carrying out myinvention I employ a tubular casing-body 1, oneend of which is adapted, as shown, to be screwed or otherwise secured in connection with an opening of a boiler 2. The casing-body 1 is intersected by a suitable valve-body 3, said valve having an opening 3 therethrough, which is adapted tobe made to register with the central passage of the casing 1. The outer end of the casing 1 is enlarged and shaped to form on its inner Side a conical valve-seat 3b, and from this outer end portion of said casing leads a tubular outlet 4. Into the larger end of the casing-body 1 eX- tends the cone-like termination of a tubular valve 5, the latter. being adapted to engage the seat 3b and to close the entrance to the outlet 4. The tubular valve 5 is connected with the casing 1 through the medium of a suitable tionof which hasa threaded engagement with In its outer portion the valve 5 carries a Suitable operating hand-wheel, and

fon the outer side of thc latter said valveis Aexternally threaded to engage the internal threads of -a coupling or packing nut `8, the

outer portion of which. engages a peripheral iiange 9 on a tubular member 10. The tubular member 10 extends, as shown, a desirable distance within the valve 5 and, as indicated morepclearly in Fig. 3 of the drawings, has a square central bore or passage. The outer end portion of the member 10 carries a suitable hand operating-wheel 11 and beyond the llatter a removablecap or stop-nut 12. Within the member 10 is slidably mounted the squared portion 13aof a cleaner-rod 13. the` forward portion 'of which is threaded, as indicated at 13b, and terminates in a cleanerpoi-nt 13. As indicated in the drawings, the threaded portion 13b is adapted to engage the internally-threaded forward and reduced end portion of thetubular valve 5. It isobvious that when the valve 3 is turned to the open position Shown in the drawings and the valve 5 is turned outward until the opening to the outlet tube or nozzle 4 is uncovered the steam from the boiler may passfreely -through Said outlet for the usual test purresult in forcing from the inlet to the casing- 1 any obstruction and permitting'when the cleaner-rod is returned to its normal position a free passage of steam or water to the outlet 4. In case the parts of the gage-cock which are on the outer side of the valve 3 should become clogged lin any manner it will be understood that the valve 3 may be turned tothe coupling or -packing nut 6,.one end of which screws onto said casing andthe remaining por- IOO closed position, after which the various parts of the gage-body may be separated and cleansed. In this manner the cleaning of the gage-cock and its various parts may be accomplished without interfering with the steam or Water in the boiler. While my device is described as a steam or water gage-cock, it will be understood that the same may be readily adapted for use as a Water glass-cock.

From the construction and operation which I have shown and described it will be seen that a comparatively simple although effective gage-cock mechanism is provided which will permit of the entrance to the cock being thoroughly and quickly cleaned and by means of which the parts forming the gage-cock may be disconnected and cleaned without the necessity of irst withdrawing the water or steam from the boiler.

Having now fully described my invention, what I claim, and desire to secure by Letters Patent, is

l. 1in a gage-cock, the combination with a casing 1 adapted to be connected with a boiler,

said casing having an outlet and a tubular valve 5 adjustably supported from said casing, and a tubular member lO rotatably mounted in said valve 5, of a cleaner-rod having its rear portion slidably mounted in said member and its forward portion threaded and engaging internal threads of said valve 5 and means connected with the valve 5 and member l() to impart rotary motion thereto.

2. In a gage-cock, the combination with a casing 1 adapted to have one of its ends connected with a boiler, a valve 3 intersecting the central passage of said casing l and having a valve opening therethrough, said casing having an outlet and a valve 5 controlling said outlet, of a longitudinally-adjustable cleanerrod passing through said valve 5 and adapted to be projected through the opening of the valve 3.

EDMUND SMITH, C. C. SHEPHERD. 

